Coupling box for rolling mills



5 Sheets-Sheet vwentoi Nov. l2, 1929. P. G. PALMGREN COUPLING BOX FOR`ROLLING MILLS Filed Deo. 51. 1927 Hav' 'unmrPa/myrefz Nov. l2, 1929. P. G. PALMGREN COUPLING BOX FOR ROLLING MILLS 3 Sheets-Sheet 2 Filed DW 51, 1927 Nov. 12, 1929. P. G. PALMGREN 1,734,978

COUPLING BOX FOR ROLLING MILLS Filed Dec. 51, 1927 3 Sheets-Sheet 3 l I ventoz l m Perzmnarzlmyrn Patented Nov. 12, 1929 UNITED STATES PATENT `OFFICE PEB GUNNAB `PAIJIIGREN, OF GOTTENBORG, SWEDEN, ASSIGNOR TO AKTIEBOLAGET SVENSXA KULLAGERFABBIKEN, OF GOTTENBORG, SWEDEN, A CORPORATION 0F SWEDEN COUPLING BOX SFOR ROLLING MILLS Application led December 31, 19k?, Serial No. 243,833, and in Sweden January 3, 1927.

This invention relates to improvements in couplin boxes for rolling mills, and the like.

The o ject of the invention is to facilitate the mounting and to obtain a coupling which, when being dismantled, has blocks and fork remaining in the coupling box. I

The invention consists, chiey, in the necks being faced off to a wedge shape and the sleeve surrounding the neck substituted by a fork in which the neck can be pushed in laterally and secured by meansV of a suitable locking arrangement. This locking arrangement suitably consists of a wedge or a rotary washer inserted in corresponding recesses in the ends of the fork and secured by means of a spring or the like.

In the drawings, two different forms of embodiments are shown by way of example. One form of embodiment is shown to the left in Figs. 1 and 3 in elevation (partial section) and plan view and in Fig. 2 in cross section.

The other form of embodiment is shown in the right in Figs. 1 and 3 and in cross section in Fig. 4. Fig. 5 is a plan view showing the mounting of the coupling box. Fig. 6 is a detail looking at the device in the Fig. 2 position from the right-hand side, and Fig. 7 is a similar detail of the construction shown in Fig. 4.

Referrin to the drawings, the neck ends 1 faced-oil o liquely in two places are shown inserted in the ends of a coupling box 2. A. V-shaped fork 3, or the like, inserted in the end of the coupling box is threaded on to the faced-oil neck end and is surrounded by blocks 4, 5 fitting in cylindrical or tapering recesses in the coupling box. crews 6 are screwed into the fork 3 and entering the blocks 4, 5, by means of which these latter are prevented from leaving their place but are free to turn around an axis perpendicular to the roll neck.

For the sake of retaining the coupling box on the neck there is provided a locking device which in the form of embodiment shown in Fig. 2 and at the left end of the coupling box in Figs. 1, 3 and 5) consists of a lock plate 7 or the like, inserted in suitable recesses in the ends of the 'fork and secured by means of a lockwasher 8, lfastened to the lock plate 7,

. bers tapered to by means of a screw and intended to hold the latter 1n place. In the :form of embodiment 'shown in Fig. 4 (and at the right end of the yobliquel over the one (left) end of the neck so that t e fork placed in the box is caused to surround the neck end, after which the box is swun over the other (right) neck end from the s ew position shown in Fig. 5. The mounting 1s facilitated through the skew facin -oi of the neck ends and the correspon ing V-shape of the fork. By such a mounting, the arrangement will have the advantage that the mounting is not prevented by the ordinary far outwardly projecting adjustin screws 11. Furthermore the describe arrangement will also have the advantages that, in dismantling, blocks and fork remain in the coupling box where they are protected against sand and grit.

I claim:

1. In couplin boxes for rolling mills wherein the ro necks are faced oi to a wedge shape the combination with a coupling box, of an open sided :fork shaped to conform to the roll neck and into which it can be inserted from the side, and locking means for securing the neck in the fork.

2. An arrangement according to claim 1 characterized by the locking means consisting of a plate, recesses being formed in the ends of the fork for holding the plate in the recesses.

3. The combination with a rolling mill roll having a neck wedge shaped in cross section; of a coupling box, a fork universally jointed to said coupling box and having side memt the wedge shaped roll neck and engaged laterally thereon, and means to release ly hold the fork on the roll neck.

4. The combination with a rolling mill roll having a neck wedge shaped in cross section;

4e' PER G @l 2' @genere of a coupling box, a fork universally jointed to said coupling box and having side members tapered to fit the wedge shaped roll neck and engaged laterally thereon, the arms of said fork having alined openings adjacent their free ends, and a key member engaging" i in said openings and closing the open end of the fork.v

5. The combination with a rolling mill roll l@ having a neck wedge shaped in cross section: of a coupling box, a fork universallv jointed to said coupling' box and having side members tapered to fit the wedge shaped roll neck and engaged laterallv thereon. the arms of 15 said fork having alined openings adiacent their free ends, a kev member engaging; in said openings and closing` the open end of the fork, and means to prevent retraction of said kev member.

2o 6. The combination with a rolling mill roll having a neck provided with opposed Hat sides; of a yoke' engaging laterally on said neck with its sides erigfagzirial the flattened sides of the neck, means to releasablv hold the 25 voke in position on the neck. a roll coupling having a Jlorked end provided with an arcuate guide groove lying in a plane radial of the axis of the coupling and passed through the'arms of the forked coupling end.a a 'oair of 30 bearing members ittingin said forked end of the couplingv and provided with rib portions extending into the guide grooves, said bearing members being slidable along the grrooved portion of the coupling member.

35 and alined pivot pins extending outwardly from the arms oi' the yoke and journaled in said bearing;r member.. Y

In testimony whereof I have signed my Hamee an. aannemer. 

